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| javax.swing.JComponent
 javax.swing.JMenuBar
| JMenuBar | | public class JMenuBar extends JComponent implements Accessible,MenuElement(Code) | | An implementation of a menu bar. You add JMenu objects to the
menu bar to construct a menu. When the user selects a JMenu
object, its associated JPopupMenu is displayed, allowing the
user to select one of the JMenuItems on it.
For information and examples of using menu bars see
How to Use Menus,
a section in The Java Tutorial.
Warning: Swing is not thread safe. For more
information see Swing's Threading
Policy.
Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing. As of 1.4, support for long term storage
of all JavaBeansTM
has been added to the java.beans package.
Please see
java.beans.XMLEncoder .
version:
1.112 05/05/07
author:
Georges Saab
author:
David Karlton
author:
Arnaud Weber
See Also: JMenu
See Also: JPopupMenu
See Also: JMenuItem |
| Inner Class :protected class AccessibleJMenuBar extends AccessibleJComponent implements AccessibleSelection | |
| Constructor Summary | |
| public | JMenuBar()
Creates a new menu bar. |
| Method Summary | |
| public JMenu | add(JMenu c)
Appends the specified menu to the end of the menu bar. | | public void | addNotify()
Overrides JComponent.addNotify to register this
menu bar with the current keyboard manager. | | public AccessibleContext | getAccessibleContext()
Gets the AccessibleContext associated with this JMenuBar. | | public Component | getComponent()
Implemented to be a MenuElement. | | public Component | getComponentAtIndex(int i)
Returns the component at the specified index. | | public int | getComponentIndex(Component c)
Returns the index of the specified component. | | public JMenu | getHelpMenu()
Gets the help menu for the menu bar. | | public Insets | getMargin()
Returns the margin between the menubar's border and
its menus. | | public JMenu | getMenu(int index)
Returns the menu at the specified position in the menu bar.
Parameters:
index - an integer giving the position in the menu bar, where0 is the first position the JMenu at that position, or null ifif there is no JMenu at that position (ie. | | public int | getMenuCount()
Returns the number of items in the menu bar. | | public SingleSelectionModel | getSelectionModel()
Returns the model object that handles single selections. | | public MenuElement[] | getSubElements()
Implemented to be a MenuElement -- returns the
menus in this menu bar. | | public MenuBarUI | getUI()
Returns the menubar's current UI. | | public String | getUIClassID()
Returns the name of the L&F class that renders this component. | | public boolean | isBorderPainted()
Returns true if the menu bars border should be painted. | | public boolean | isSelected()
Returns true if the menu bar currently has a component selected. | | public void | menuSelectionChanged(boolean isIncluded)
Implemented to be a MenuElement -- does nothing. | | protected void | paintBorder(Graphics g)
Paints the menubar's border if BorderPainted
property is true. | | protected String | paramString()
Returns a string representation of this JMenuBar.
This method
is intended to be used only for debugging purposes, and the
content and format of the returned string may vary between
implementations. | | static boolean | processBindingForKeyStrokeRecursive(MenuElement elem, KeyStroke ks, KeyEvent e, int condition, boolean pressed)
| | protected boolean | processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)
Subclassed to check all the child menus. | | public void | processKeyEvent(KeyEvent e, MenuElement path, MenuSelectionManager manager)
Implemented to be a MenuElement -- does nothing. | | public void | processMouseEvent(MouseEvent event, MenuElement path, MenuSelectionManager manager)
Implemented to be a MenuElement -- does nothing. | | public void | removeNotify()
Overrides JComponent.removeNotify to unregister this
menu bar with the current keyboard manager. | | public void | setBorderPainted(boolean b)
Sets whether the border should be painted. | | public void | setHelpMenu(JMenu menu)
Sets the help menu that appears when the user selects the
"help" option in the menu bar. | | public void | setMargin(Insets m)
Sets the margin between the menubar's border and
its menus. | | public void | setSelected(Component sel)
Sets the currently selected component, producing a
a change to the selection model. | | public void | setSelectionModel(SingleSelectionModel model)
Sets the model object to handle single selections. | | public void | setUI(MenuBarUI ui)
Sets the L&F object that renders this component. | | public void | updateUI()
Resets the UI property with a value from the current look and feel. |
| JMenuBar | | public JMenuBar()(Code) | | Creates a new menu bar.
|
| add | | public JMenu add(JMenu c)(Code) | | Appends the specified menu to the end of the menu bar.
Parameters:
c - the JMenu component to add the menu component |
| addNotify | | public void addNotify()(Code) | | Overrides JComponent.addNotify to register this
menu bar with the current keyboard manager.
|
| getAccessibleContext | | public AccessibleContext getAccessibleContext()(Code) | | Gets the AccessibleContext associated with this JMenuBar.
For JMenuBars, the AccessibleContext takes the form of an
AccessibleJMenuBar.
A new AccessibleJMenuBar instance is created if necessary.
an AccessibleJMenuBar that serves as the AccessibleContext of this JMenuBar |
| getComponentAtIndex | | public Component getComponentAtIndex(int i)(Code) | | Returns the component at the specified index.
Parameters:
i - an integer specifying the position, where 0 is first the Component at the position,or null for an invalid index |
| getComponentIndex | | public int getComponentIndex(Component c)(Code) | | Returns the index of the specified component.
Parameters:
c - the Component to find an integer giving the component's position, where 0 is first;or -1 if it can't be found |
| getHelpMenu | | public JMenu getHelpMenu()(Code) | | Gets the help menu for the menu bar. This method is not yet
implemented and will throw an exception.
the JMenu that delivers help to the user |
| getMargin | | public Insets getMargin()(Code) | | Returns the margin between the menubar's border and
its menus. If there is no previous margin, it will create
a default margin with zero size.
an Insets object containing the margin values
See Also: Insets |
| getMenu | | public JMenu getMenu(int index)(Code) | | Returns the menu at the specified position in the menu bar.
Parameters:
index - an integer giving the position in the menu bar, where0 is the first position the JMenu at that position, or null ifif there is no JMenu at that position (ie. ifit is a JMenuItem) |
| getMenuCount | | public int getMenuCount()(Code) | | Returns the number of items in the menu bar.
the number of items in the menu bar |
| getSubElements | | public MenuElement[] getSubElements()(Code) | | Implemented to be a MenuElement -- returns the
menus in this menu bar.
This is the reason for implementing the MenuElement
interface -- so that the menu bar can be treated the same as
other menu elements.
an array of menu items in the menu bar. |
| isBorderPainted | | public boolean isBorderPainted()(Code) | | Returns true if the menu bars border should be painted.
true if the border should be painted, else false |
| isSelected | | public boolean isSelected()(Code) | | Returns true if the menu bar currently has a component selected.
true if a selection has been made, else false |
| menuSelectionChanged | | public void menuSelectionChanged(boolean isIncluded)(Code) | | Implemented to be a MenuElement -- does nothing.
See Also: JMenuBar.getSubElements |
| paramString | | protected String paramString()(Code) | | Returns a string representation of this JMenuBar.
This method
is intended to be used only for debugging purposes, and the
content and format of the returned string may vary between
implementations. The returned string may be empty but may not
be null.
a string representation of this JMenuBar |
| processKeyBinding | | protected boolean processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)(Code) | | Subclassed to check all the child menus.
since:
1.3 |
| removeNotify | | public void removeNotify()(Code) | | Overrides JComponent.removeNotify to unregister this
menu bar with the current keyboard manager.
|
| setBorderPainted | | public void setBorderPainted(boolean b)(Code) | | Sets whether the border should be painted.
Parameters:
b - if true and border property is not null,the border is painted.
See Also: JMenuBar.isBorderPainted |
| setHelpMenu | | public void setHelpMenu(JMenu menu)(Code) | | Sets the help menu that appears when the user selects the
"help" option in the menu bar. This method is not yet implemented
and will throw an exception.
Parameters:
menu - the JMenu that delivers help to the user |
| setMargin | | public void setMargin(Insets m)(Code) | | Sets the margin between the menubar's border and
its menus. Setting to null will cause the menubar to
use the default margins.
Parameters:
m - an Insets object containing the margin values
See Also: Insets |
| setSelected | | public void setSelected(Component sel)(Code) | | Sets the currently selected component, producing a
a change to the selection model.
Parameters:
sel - the Component to select |
| setUI | | public void setUI(MenuBarUI ui)(Code) | | Sets the L&F object that renders this component.
Parameters:
ui - the new MenuBarUI L&F object
See Also: UIDefaults.getUI |
| updateUI | | public void updateUI()(Code) | | Resets the UI property with a value from the current look and feel.
See Also: JComponent.updateUI |
| Methods inherited from javax.swing.JComponent | void _paintImmediately(int x, int y, int w, int h)(Code)(Java Doc)
public void addAncestorListener(AncestorListener listener)(Code)(Java Doc)
public void addNotify()(Code)(Java Doc)
public synchronized void addVetoableChangeListener(VetoableChangeListener listener)(Code)(Java Doc)
boolean alwaysOnTop()(Code)(Java Doc)
boolean checkIfChildObscuredBySibling()(Code)(Java Doc)
void clientPropertyChanged(Object key, Object oldValue, Object newValue)(Code)(Java Doc)
void compWriteObjectNotify()(Code)(Java Doc)
void componentInputMapChanged(ComponentInputMap inputMap)(Code)(Java Doc)
final static void computeVisibleRect(Component c, Rectangle visibleRect)(Code)(Java Doc)
public void computeVisibleRect(Rectangle visibleRect)(Code)(Java Doc)
public boolean contains(int x, int y)(Code)(Java Doc)
public JToolTip createToolTip()(Code)(Java Doc)
public void disable()(Code)(Java Doc)
void dndDone()(Code)(Java Doc)
TransferHandler.DropLocation dropLocationForPoint(Point p)(Code)(Java Doc)
public void enable()(Code)(Java Doc)
public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue)(Code)(Java Doc)
public void firePropertyChange(String propertyName, int oldValue, int newValue)(Code)(Java Doc)
public void firePropertyChange(String propertyName, char oldValue, char newValue)(Code)(Java Doc)
protected void fireVetoableChange(String propertyName, Object oldValue, Object newValue) throws java.beans.PropertyVetoException(Code)(Java Doc)
public AccessibleContext getAccessibleContext()(Code)(Java Doc)
public ActionListener getActionForKeyStroke(KeyStroke aKeyStroke)(Code)(Java Doc)
final public ActionMap getActionMap()(Code)(Java Doc)
final ActionMap getActionMap(boolean create)(Code)(Java Doc)
public float getAlignmentX()(Code)(Java Doc)
public float getAlignmentY()(Code)(Java Doc)
public AncestorListener[] getAncestorListeners()(Code)(Java Doc)
public boolean getAutoscrolls()(Code)(Java Doc)
public int getBaseline(int width, int height)(Code)(Java Doc)
public BaselineResizeBehavior getBaselineResizeBehavior()(Code)(Java Doc)
public Border getBorder()(Code)(Java Doc)
public Rectangle getBounds(Rectangle rv)(Code)(Java Doc)
final public Object getClientProperty(Object key)(Code)(Java Doc)
protected Graphics getComponentGraphics(Graphics g)(Code)(Java Doc)
public JPopupMenu getComponentPopupMenu()(Code)(Java Doc)
public int getConditionForKeyStroke(KeyStroke aKeyStroke)(Code)(Java Doc)
boolean getCreatedDoubleBuffer()(Code)(Java Doc)
public int getDebugGraphicsOptions()(Code)(Java Doc)
public static Locale getDefaultLocale()(Code)(Java Doc)
public FontMetrics getFontMetrics(Font font)(Code)(Java Doc)
public Graphics getGraphics()(Code)(Java Doc)
static void getGraphicsInvoked(Component root)(Code)(Java Doc)
public int getHeight()(Code)(Java Doc)
public boolean getInheritsPopupMenu()(Code)(Java Doc)
final public InputMap getInputMap(int condition)(Code)(Java Doc)
final public InputMap getInputMap()(Code)(Java Doc)
final InputMap getInputMap(int condition, boolean create)(Code)(Java Doc)
public InputVerifier getInputVerifier()(Code)(Java Doc)
public Insets getInsets()(Code)(Java Doc)
public Insets getInsets(Insets insets)(Code)(Java Doc)
public T[] getListeners(Class<T> listenerType)(Code)(Java Doc)
public Point getLocation(Point rv)(Code)(Java Doc)
static Set<KeyStroke> getManagingFocusBackwardTraversalKeys()(Code)(Java Doc)
static Set<KeyStroke> getManagingFocusForwardTraversalKeys()(Code)(Java Doc)
public Dimension getMaximumSize()(Code)(Java Doc)
public Dimension getMinimumSize()(Code)(Java Doc)
public Component getNextFocusableComponent()(Code)(Java Doc)
public Point getPopupLocation(MouseEvent event)(Code)(Java Doc)
public Dimension getPreferredSize()(Code)(Java Doc)
public KeyStroke[] getRegisteredKeyStrokes()(Code)(Java Doc)
public JRootPane getRootPane()(Code)(Java Doc)
public Dimension getSize(Dimension rv)(Code)(Java Doc)
public Point getToolTipLocation(MouseEvent event)(Code)(Java Doc)
public String getToolTipText()(Code)(Java Doc)
public String getToolTipText(MouseEvent event)(Code)(Java Doc)
public Container getTopLevelAncestor()(Code)(Java Doc)
public TransferHandler getTransferHandler()(Code)(Java Doc)
public String getUIClassID()(Code)(Java Doc)
public boolean getVerifyInputWhenFocusTarget()(Code)(Java Doc)
public synchronized VetoableChangeListener[] getVetoableChangeListeners()(Code)(Java Doc)
public Rectangle getVisibleRect()(Code)(Java Doc)
public int getWidth()(Code)(Java Doc)
static byte getWriteObjCounter(JComponent comp)(Code)(Java Doc)
public int getX()(Code)(Java Doc)
public int getY()(Code)(Java Doc)
public void grabFocus()(Code)(Java Doc)
public boolean isDoubleBuffered()(Code)(Java Doc)
public static boolean isLightweightComponent(Component c)(Code)(Java Doc)
public boolean isManagingFocus()(Code)(Java Doc)
public boolean isOpaque()(Code)(Java Doc)
public boolean isOptimizedDrawingEnabled()(Code)(Java Doc)
boolean isPainting()(Code)(Java Doc)
final public boolean isPaintingForPrint()(Code)(Java Doc)
boolean isPaintingOrigin()(Code)(Java Doc)
public boolean isPaintingTile()(Code)(Java Doc)
public boolean isRequestFocusEnabled()(Code)(Java Doc)
public boolean isValidateRoot()(Code)(Java Doc)
public void paint(Graphics g)(Code)(Java Doc)
protected void paintBorder(Graphics g)(Code)(Java Doc)
protected void paintChildren(Graphics g)(Code)(Java Doc)
protected void paintComponent(Graphics g)(Code)(Java Doc)
void paintForceDoubleBuffered(Graphics g)(Code)(Java Doc)
public void paintImmediately(int x, int y, int w, int h)(Code)(Java Doc)
public void paintImmediately(Rectangle r)(Code)(Java Doc)
void paintToOffscreen(Graphics g, int x, int y, int w, int h, int maxX, int maxY)(Code)(Java Doc)
protected String paramString()(Code)(Java Doc)
public void print(Graphics g)(Code)(Java Doc)
public void printAll(Graphics g)(Code)(Java Doc)
protected void printBorder(Graphics g)(Code)(Java Doc)
protected void printChildren(Graphics g)(Code)(Java Doc)
protected void printComponent(Graphics g)(Code)(Java Doc)
protected void processComponentKeyEvent(KeyEvent e)(Code)(Java Doc)
protected boolean processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)(Code)(Java Doc)
boolean processKeyBindings(KeyEvent e, boolean pressed)(Code)(Java Doc)
static boolean processKeyBindingsForAllComponents(KeyEvent e, Container container, boolean pressed)(Code)(Java Doc)
protected void processKeyEvent(KeyEvent e)(Code)(Java Doc)
protected void processMouseEvent(MouseEvent e)(Code)(Java Doc)
protected void processMouseMotionEvent(MouseEvent e)(Code)(Java Doc)
final public void putClientProperty(Object key, Object value)(Code)(Java Doc)
boolean rectangleIsObscured(int x, int y, int width, int height)(Code)(Java Doc)
public void registerKeyboardAction(ActionListener anAction, String aCommand, KeyStroke aKeyStroke, int aCondition)(Code)(Java Doc)
public void registerKeyboardAction(ActionListener anAction, KeyStroke aKeyStroke, int aCondition)(Code)(Java Doc)
public void removeAncestorListener(AncestorListener listener)(Code)(Java Doc)
public void removeNotify()(Code)(Java Doc)
public synchronized void removeVetoableChangeListener(VetoableChangeListener listener)(Code)(Java Doc)
public void repaint(long tm, int x, int y, int width, int height)(Code)(Java Doc)
public void repaint(Rectangle r)(Code)(Java Doc)
public boolean requestDefaultFocus()(Code)(Java Doc)
public void requestFocus()(Code)(Java Doc)
public boolean requestFocus(boolean temporary)(Code)(Java Doc)
public boolean requestFocusInWindow()(Code)(Java Doc)
protected boolean requestFocusInWindow(boolean temporary)(Code)(Java Doc)
public void resetKeyboardActions()(Code)(Java Doc)
public void reshape(int x, int y, int w, int h)(Code)(Java Doc)
public void revalidate()(Code)(Java Doc)
static Graphics safelyGetGraphics(Component c)(Code)(Java Doc)
static Graphics safelyGetGraphics(Component c, Component root)(Code)(Java Doc)
public void scrollRectToVisible(Rectangle aRect)(Code)(Java Doc)
final public void setActionMap(ActionMap am)(Code)(Java Doc)
public void setAlignmentX(float alignmentX)(Code)(Java Doc)
public void setAlignmentY(float alignmentY)(Code)(Java Doc)
public void setAutoscrolls(boolean autoscrolls)(Code)(Java Doc)
public void setBackground(Color bg)(Code)(Java Doc)
public void setBorder(Border border)(Code)(Java Doc)
public void setComponentPopupMenu(JPopupMenu popup)(Code)(Java Doc)
void setCreatedDoubleBuffer(boolean newValue)(Code)(Java Doc)
public void setDebugGraphicsOptions(int debugOptions)(Code)(Java Doc)
public static void setDefaultLocale(Locale l)(Code)(Java Doc)
public void setDoubleBuffered(boolean aFlag)(Code)(Java Doc)
Object setDropLocation(TransferHandler.DropLocation location, Object state, boolean forDrop)(Code)(Java Doc)
public void setEnabled(boolean enabled)(Code)(Java Doc)
public void setFocusTraversalKeys(int id, Set<? extends AWTKeyStroke> keystrokes)(Code)(Java Doc)
public void setFont(Font font)(Code)(Java Doc)
public void setForeground(Color fg)(Code)(Java Doc)
public void setInheritsPopupMenu(boolean value)(Code)(Java Doc)
final public void setInputMap(int condition, InputMap map)(Code)(Java Doc)
public void setInputVerifier(InputVerifier inputVerifier)(Code)(Java Doc)
public void setMaximumSize(Dimension maximumSize)(Code)(Java Doc)
public void setMinimumSize(Dimension minimumSize)(Code)(Java Doc)
public void setNextFocusableComponent(Component aComponent)(Code)(Java Doc)
public void setOpaque(boolean isOpaque)(Code)(Java Doc)
void setPaintingChild(Component paintingChild)(Code)(Java Doc)
public void setPreferredSize(Dimension preferredSize)(Code)(Java Doc)
public void setRequestFocusEnabled(boolean requestFocusEnabled)(Code)(Java Doc)
public void setToolTipText(String text)(Code)(Java Doc)
public void setTransferHandler(TransferHandler newHandler)(Code)(Java Doc)
protected void setUI(ComponentUI newUI)(Code)(Java Doc)
void setUIProperty(String propertyName, Object value)(Code)(Java Doc)
public void setVerifyInputWhenFocusTarget(boolean verifyInputWhenFocusTarget)(Code)(Java Doc)
public void setVisible(boolean aFlag)(Code)(Java Doc)
static void setWriteObjCounter(JComponent comp, byte count)(Code)(Java Doc)
int shouldDebugGraphics()(Code)(Java Doc)
void superProcessMouseMotionEvent(MouseEvent e)(Code)(Java Doc)
public void unregisterKeyboardAction(KeyStroke aKeyStroke)(Code)(Java Doc)
public void update(Graphics g)(Code)(Java Doc)
public void updateUI()(Code)(Java Doc)
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